G&O Maritime Group

We are a group of sub system providers to the maritime industry, all developing high quality products and enabling our customers through the green transition in the maritime industry

Our brands are part of three divisions

Propulsion management

Offers vibration compensators, cylinder lubrication systems and piston rod stuffing boxes. We cooperate with engine manufacturers and shipping companies to optimise main engine operations and support the important task of utilising new environmentally friendly fuel types.


Water & Waste management

Includes incineration plants and biological water purifying plants, securing that waste water is purified before discharge while solid waste and oil sludge is incinerated at high temperatures to reduce SOx and NOx emissions.


Tank management

Provides PV valves and protects tank vessels against unintended overpressure or vacuum while simultaneously protecting against fire risk and ensuring that emissions from the cargo is kept to a minimum in accordance with IMO standards.

One group, six leading brands

Division: Water & Waste management

Incineration of waste and oil sludge, eliminating the need for discharging to shore while reducing emissions from incineration.

Division: Water & Waste management

Biologically cleaning of grey and black waste water before it is discharged.

Division: Propulsion management

Compensators that eliminate vibrations at the source, reducing cost, improving comfort, and cutting fuel spend.

Division: Propulsion management

Leading global provider of cylinder lubrication systems for two-stroke marine engines, assisting ship owners achieve up to 65% lube oil savings, improving the engine conditions, and reducing emissions.

Division: Propulsion management

Piston rod stuffing boxes for two-stroke engines continuously improved to live up to new fuel types entering the market.

Division: Tank management

Valves and venting equipment reducing emissions from cargo while keeping vessels, equipment and crews safe every day.

Annual Sustainability Report

Based on our generations of work with sustainable solutions for the maritime industry, we are committed to ensuring a more structured approach to our sustainability efforts. We implement initiatives year after year to further improve as a responsible employer and transparent business partner.

You can learn about these efforts and initiatives in our latest sustainability report.

We are here for our customers through times of change

The maritime industry is undergoing a green transition in which new technologies and fuel types are of paramount importance.

In G&O Maritime Group, we want to offer value to our customers through our deep technical expertise, through R&D and by understanding our customers’ needs. Our ambition is to stand out as one of the strongest suppliers in the industry, enabling our customers during this important market change.

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Latest news in G&O Maritime Group

  • Premium Exchange Concept: Enhancing Uptime through Tailored Services

    “Our Compensator Exchange Concept consistently serves as the key to unlocking opportunities, even in the most demanding niche markets that may otherwise seem ‘closed’” Morten Kjæmpe, Head of Service & Technical Support says “the depth of our expertise allows us to consistently deliver high-quality services, regardless of task complexity. Credibility is vital for success, and…

  • Reducing CO2 emissions

    Reducing CO2 emissions

    ARTICLE Reducing CO2 emissions across operations is a clear goal for many businesses today. The climate is changing, and this is having significant and visible effects on nature, animal life and humanity.  Although shipping is the most energy-efficient method for moving cargo over long distances, the sheer size of the industry means that marine vessels…

  • Danish marine bioreactor to reduce harmful waste in oceans

    Danish marine bioreactor to reduce harmful waste in oceans

    Handling wastewater on larger ships is becoming an increasing challenge due to tighter environmental legislation and customers’ growing demand for green solutions. Danish JD-Contractors, which operates several large ships, has experienced significant problems with their maritime purification systems. Bjarne Sørensen, Marine Superintendent at JD-Contractors, says: “On our ship CABLE ONE, we had two purification systems…

  • SERVICE LETTER: HJ Smartlube 4.0 – software update 24.05

    SERVICE LETTER: HJ Smartlube 4.0 – software update 24.05

    RELEVANT TO: All users of HJ Smartlube June 2024 Software update 24.05 Update your cylinder lubrication system with the latest software for improved user experience and bug fixes. User experience We have optimized the back end of the system so users get immediate response using the HMI. The feed rate graph on the Home page…